Is migraine a dangerous disease?

Migraine has long been considered a painful condition that affects quality of life but is not otherwise dangerous. A number of case-control and cohort studies, however, indicated that migraineurs, particularly those with aura, have a higher risk of ischemic but not hemorrhagic stroke.1 Further, the relationship between migraine (in particular with aura) and stroke was verified in 2 large prospective cohorts: the Women's Health Study2 and the...